对于接入支付,肯定是要获取用户发起支付请求时的来源ip,目前市面上的三方支付平台大多都需要传递请求来源,因为他们要保证下单和最终付款的ip处于同一个地点(具体规则各个平台不一致,但目的相同).
当然如果你要制作自己的支付平台,那肯定是要使用者来传递ip,而不是平台自己获取ip,平台自己获取的ip只是使用者服务器的ip,这样是不准确的有可能会造成无法支付.
import cn.hutool.core.util.StrUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
@Slf4j
public class IpUtil {
/**
* 获取客户端ip地址
*/
public static String getClientIp() {
String unknown = "unknown";
HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
String ip = request.getHeader("x-forwarded-for");
log.info("x-forwarded-for ip: " + ip);
if (ip != null && ip.length() != 0 && !unknown.equalsIgnoreCase(ip)) {
// 多次反向代理后会有多个ip值,第一个ip才是真实ip
if (ip.contains(",")) {
String[] realIp = ip.split(",");
if ("127.0.0.1".equals(realIp[0])) {
ip = realIp[1];
}
else {
ip = realIp[0];
}
}
}
if (StrUtil.isBlank(ip) || unknown.equalsIgnoreCase(ip)) {
ip = request.getHeader("Proxy-Client-IP");
log.info("Proxy-Client-IP ip: " + ip);
}
if (StrUtil.isBlank(ip) || unknown.equalsIgnoreCase(ip)) {
ip = request.getHeader("WL-Proxy-Client-IP");
log.info("WL-Proxy-Client-IP ip: " + ip);
}
if (StrUtil.isBlank(ip) || unknown.equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_CLIENT_IP");
log.info("HTTP_CLIENT_IP ip: " + ip);
}
if (StrUtil.isBlank(ip) || unknown.equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_X_FORWARDED_FOR");
log.info("HTTP_X_FORWARDED_FOR ip: " + ip);
}
if (StrUtil.isBlank(ip) || unknown.equalsIgnoreCase(ip)) {
ip = request.getHeader("X-Real-IP");
log.info("X-Real-IP ip: " + ip);
}
if (StrUtil.isBlank(ip) || unknown.equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
log.info("getRemoteAddr ip: " + ip);
}
log.info("获取客户端ip: " + ip);
return StrUtil.trim(ip);
}
}
以上就是获取用户ip来源的实现方式